Catching and handling Uglify errors when using Gulp - npm

Question

My Gulp setup is otherwise working fantastically, but it stops if there's an error with my JS files. Until Gulp 4 is finally released, we're all stuck using the less than perfect error system in Gulp... So how can I catch Uglify's errors?
gulp.task('js', function() {
return gulp
.src(inputJS)
.pipe(sourcemaps.init())
.pipe(concat('main.js'))
.pipe(uglify(uglifyOptions))
.pipe(sourcemaps.write('./maps'))
.pipe(gulp.dest(outputJS))
});
According to the Uglify documentation, gulp-uglify emits an 'error' event if it is unable to minify a specific file. Wherever possible, the PluginError object will contain the following properties: fileName, lineNumber, message.
The closest I've gotten it to working is: .on('error', function(uglify) { console.error(uglify.message) })), but it ends up with the above Gulp task ceasing to do any more.
Edit: I realise that there's a number of Gulp extensions that help when dealing with error handling (eg. Gulp-Util, Stream-Combiner2, Gulp-Plumber, etc.) but I don't wish to install a whole new extension just for Uglify (I'm handling my Sass errors just fine without one).

Answer 1

It seems the solution was very simple:
.pipe(uglify(uglifyOptions).on('error', function(uglify) {
console.error(uglify.message);
this.emit('end');
}))
Almost exactly what Jeffwa suggested, but no need for gulp-plumber. The reason my attempt was stopping is because Gulp watch tasks wait until they receive end (see: https://github.com/gulpjs/gulp/issues/259).

Answer 2

Maybe gulp-plumber will help.
var plumber = require('gulp-plumber');
gulp.task('js', function() {
return gulp
.src(inputJS)
.pipe(plumber(function(error) {
console.error(error.message);
gulp.emit('finish');
}))
.pipe(sourcemaps.init())
.pipe(concat('main.js'))
.pipe(uglify(uglifyOptions))
.pipe(sourcemaps.write('./maps'))
.pipe(gulp.dest(outputJS))
});
That should catch any errors emitted and write them to the console.